Distance to the Large Magellanic Cloud

Details Distance to the Large Magellanic Cloud Distance to the Large Magellanic Cloud

Jan 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000stin...0202806p&link_type=abstract

Technical Report, DE2001-756808; UCRL-JC-137446

Astronomy and Astrophysics

Astrophysics

Eclipsing Binary Stars, Magellanic Clouds, Distance, Astrophysics, Eclipses, Extinction, Universe

Scientific paper

The author demonstrates that the two unexpected results in the local Universe: anomalous intrinsic (V--I)0 colors of RR Lyrae stars and clump giants in the Galactic center, and very short distances to Magellanic Clouds inferred from clump giants, can be at least partially resolved with a modified coefficient of selective extinction AV)/E(V--I. With this modification, the author found a new clump-giant distance modulus to the Large Magellanic Cloud, (mu)LMC = 18.27 (+-) 0.07, which is 0.09 larger than the Udalski (1998b) result. When distance estimates from the red clump, RR Lyrae stars and the eclipsing binary HV2274 are combined, one obtains (mu)LMC = 18.31 (+-) 0.04 (internal).

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